Bird flu virus in U.S. wastewater raise questions about spread of bird flu

Spikes of flu virus in wastewater raise questions about spread of bird flu | CNN Spikes of influenza A virus seen in wastewater samples from 59 sewer systems across 18 different states this spring may point to the spread of the H5N1 avian influenza virus that is currently infecting dairy cattle, a new study suggests. Brenda Goodman CNN

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So far, the US Department of Agriculture has reported more than 30 herds of dairy cows infected with H5N1 influenza across nine states. But there are questions about how large the outbreak might be and whether the US can adequately track it.

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